This week,
astronaut Kate Rubins commenced the Heart Cells study, which assesses how the
cells of the human heart might grow, change, or otherwise react to a
microgravity environment. The cells
being studied are human stem cells that have been scientifically coerced into
becoming heart cells specifically for this mission. They will be analyzed for a month on the ISS
and then sent back to Earth for further review.

Other
scientific studies aboard the station this week included gathering more data for
the Fluid Shifts study, which determines the impact that microgravity has on
our heads, particularly regarding our squishy, water-based human eyeballs. Commander Jeff Williams and cosmonaut Alexey
Ovchinin used an ultrasound scan and a tonometer to monitor the fluid pressure
in their heads and eyes. This research
could help with the understanding of how the body’s fluids move to increase
pressure in the head while in space, which can affect astronauts’ vision.

Williams
and Rubins also resized a pair of spacesuits in preparation for their upcoming E.V.A. (extravehicular activity…code for a spacewalk.) The pair will float outside on August 19th
to install an International Docking Adapter for new types of incoming
spacecraft. The docking adapter was
delivered aboard the Dragon and will be robotically maneuvered into position
near the Harmony module two days before the spacewalk. This innovative new adapter will allow for
many different types of modern spacecraft to share the same docking port aboard
the ISS.

No, they are not tailoring Kate's spacesuit to be "slim-fitting" or "push-up / enhancing."Sorry, pervy aliens.(Image courtesy NASA.gov.)

With 5.5
tons of gear, food, and scientific supplies to unpack from their two recent deliveries,
the astronauts and cosmonauts had a busy week transferring the new cargo. A fresh spacesuit was swapped out for an
older one (to be sent back to Earth on the SpaceX Dragon’s re-arrival), and a
multitude of interesting new space gear entered the station. A portable DNA sequencer, a new type of solar
cells, several small “Gumstix” computers, and a device to help more
accurately regulate the station’s temperature were included.

Got an
idea for ways to give the ISS some more commercial usage? NASA wants to know! No, sadly, we can’t open a rock ‘n roll bar
up there, that’s not what they have in mind.
(Trust us, we tried.) In the meantime, our space tourism will have to be enjoyed from the vantage point of Commander Jeff Williams, who always makes the Earth feel pretty.

Ice floes off of Newfoundland.

"Interesting manmade structures in the dunes of the Saudi peninsula, border road between UAE and Oman."

"Northern Rockies shrouded in early morning valley fog."

That's all for this week, space fans! We'll see you next Sunday with even more from the scientific spectacularity swooping around our planet! Watch this space!

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